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Giants vs Nationals Prediction, Pick, MLB Odds for Saturday, April 18

Giants vs Nationals Prediction, Pick, MLB Odds for Saturday, April 18 article feature image
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Geoff Burke-Imagn Images. Pictured: Giants 3B Matt Chapman

The Washington Nationals host the San Francisco Giants on April 18, 2026. First pitch from Nationals Park is scheduled for 4:05 p.m. ET. The game will be broadcast on NBCS-BA.

The Giants are favored by -115 on the moneyline and by -1.5 on the run line. The Nationals are -105 on the moneyline and +1.5 on the run line. The total is set at 9.5 runs.

Find my MLB picks and Giants vs Nationals prediction below, as well as probable pitchers, weather report, and more.


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Giants vs Nationals Prediction

  • Giants vs Nationals Pick: Giants ML (-115)

My Giants vs Nationals best bet is on San Francisco to win outright. Make sure to find the best odds by checking our live MLB odds page.


Giants vs Nationals Odds

Giants Logo
Saturday, April 18
4:05 p.m. ET
NBCS-BA
Nationals Logo
Giants Odds
SpreadTotalMoneyline
-1.5
+140
9.5
-115o / -105u
-115
Nationals Odds
SpreadTotalMoneyline
+1.5
-165
9.5
-115o / -105u
-105
Odds via BetMGM. Get up-to-the-minute MLB odds here.
BetMGM Logo
  • Giants vs Nationals moneyline: Giants -115, Nationals -105
  • Giants vs Nationals over/under: 9.5 (-115o / -105u)
  • Giants vs Nationals spread: Giants -1.5 (+140), Nationals +1.5 (-165)

Giants vs Nationals Probable Pitchers

RHP Adrian Houser (SF)StatRHP Cade Cavalli (WAS)
0-2W-L0-1
0.3fWAR (FanGraphs)0.1
5.06 / 4.47ERA / xERA4.60 / 5.02
3.65 / 3.96FIP / xFIP4.37 / 5.69
1.56WHIP1.72
6.8K-BB%1.4
52.5GB%47.8
94Stuff+100
118Location+87

Giants vs Nationals MLB Betting Preview

Our own Sean Zerillo offers a great edge on the Giants' moneyline this afternoon.

While the consensus line sits around -115, Zerillo projects San Francisco at -140 for this game, representing a 4.8% edge against the market and a B grade in our system.

As a reminder, you can see all of Zerillo's MLB game projections with an Action PRO Subscription. Find his projected lines every day on the PRO Projections tab.


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Giants vs Nationals Pick, Betting Analysis

While both starting pitchers might not seem like a guarantee, the Giants' Adrian Houser is coming off a career year with a 3.31 ERA with the Rays and White Sox, and in the second half of the season with Chicago, his ERA was an excellent 2.11.

He's a notorious groundball pitcher and should be able to bounce back soon against a Nationals lineup that ranks 20th in wRC+ against right-handed pitchers this season.

Action PRO projects Houser for 3.1 strikeouts today.

The Giants are doing better away (5-5) than at home (3-7) so far, and have won two in a row against the Reds and in this series opener against Washington.

The Nationals are a concerning team in two fundamental aspects. This season, they rank 28th in fielding percentage (.978) and in bullpen ERA (6.01).

Back San Francisco to repeat on the road today.

Pick: Giants ML (-115, BetMGM)

Playbook

Giants vs Nationals Weather


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